Tests run, but don't pull from disk as expected.

[christinaholtNOAA]

Description

After PR #681, the tests pass on Hera and Jet, but many of them do not find the necessary data on disk and follow up to check alternate data repositories (hpps, then aws) for the required data. It is expected that the test suite will have failures on any platform not connected to hpss.

Steps to Reproduce

1. Run the run_WE2E_tests.sh script for a variety of test cases on Jet and/or Hera.
2. Check the logs to see where the data is pulled from -- many will be HPSS or AWS.

-- OR --

1. Run the run_WE2E_tests.sh script for a variety of test cases on Cheyenne.
2. Likely observe failures in get_extrn_ics and get_extrn_lbcs in every test case that cannot find data on disk as it does not have access to RDHPCS hpss. The behavior is unclear as to what would happen when a user tries to use htar or hsi commands on Cheyenne as that platform is defunct. There is a possibility that it would alternatively fail when trying to connect to AWS since it cannot use wget from the compute nodes. Failure is imminent in some form.